Filling liquid filling device and preparation method thereof, and filling method of electro-wetting filling liquid
A filling liquid and device technology, applied in the field of electrowetting filling liquid filling, filling liquid filling devices and their preparation, can solve problems such as uncontrollability, waste of ink, uneven volume of ink, etc., to save consumption, avoid bubbles, Improve the effectiveness of the preparation process
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[0046] Example 1
[0047] See figure 1 , The present invention provides a filling fluid filling device, comprising a filling fluid circulation device and an orifice plate 4, the orifice plate 4 has nozzle holes, the filling fluid circulation device includes two substrates, the substrate is composed of Made of any one of silicon-based materials, glass, and polymer materials, one of the substrates has a flow channel, and the flow channel is sequentially provided with a first fluid flow path, a second fluid flow path 21, and a mixing flow path 31 ( figure 1 The dashed frame is only used to illustrate the position of mixing and circulation, and is not a component of the filling liquid filling device. The flow channel inside the dashed frame is the mixing flow path), the first fluid flow path has a first fluid inlet 1, the first The fluid flow path has a branch 110 and a branch 111. The branch 110 and the branch 111 are located on both sides of the second fluid passage 21. The first fl...
Example Embodiment
[0049] Example 2
[0050] The present invention also provides a method for preparing a filling liquid filling device to prepare a filling liquid circulating device: Figure 5 As shown, first, a soft photolithography method is used to prepare a runner, a photoresist 7 is coated on a silicon wafer 6, and a mask is taken. The mask has a light-transmitting part 8 and a light-impermeable part 9, and the ultraviolet light passes through the The mask is irradiated on the photoresist 7 to form a silicon wafer male mold 10 with the runner pattern shown in Embodiment 1. The PDMS material is formed by pouring, curing and peeling process. figure 1 The PDMS substrate 11 of the flow channel, and then the PDMS substrate 11 and another glass substrate 12 are bonded by a thermocompression bonding process. A flow channel 13 is formed between the PDMS substrate 11 and the glass substrate 12, and the flow channel The depth of the flow channel 13 is 10-50 μm. The flow channel 13 has the same pattern ...
Example Embodiment
[0052] Example 3
[0053] The invention also provides a filling method of electrowetting ink, such as Image 6 Shown. Take a lower substrate 16 with a pixel grid 15, and simultaneously inject the polar liquid and ink for electrowetting display into the first liquid inlet 1 and the second liquid inlet 2 of the filling liquid filling device using a pressure injection pump. Along Image 6 In the direction of the solid arrow, the ink flows along Image 6 Flowing in the direction of the arrow in the middle dashed line, the polar liquid merges with the ink from both sides of the branch at the same time. At the confluence of the polar liquid and the ink, the ink is sheared by the polar liquid into different phases under the interfacial tension of the two-phase fluid. Continuous droplets, the polar liquid wraps the ink to form a continuous phase filling liquid, and then when the filling liquid passes through multiple Y-shaped classification channels, it is cut into smaller uniform fillin...
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